Air-pressure apparatus for beer-kegs



(No Model.) S S H r o. & G.'M. HEIN-TZ RA. DOTT RWRIGR. AIR PRESSURE APPARATUS FOR BEBR'KEGS, am.

No. 294,230' Patented Feb.'26, 1884. R

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linrrnn STATES PATENT Orrrcno OHRISTIAN-HEINTZ AND GEORGE M. HEINTZ, OF BUFFALO, AND ANDREXV DOTTERNVEIOH, OF DUNKIRK, NEXV YORK.

AIR-PRESSUREAPPARATUS i-oR BEER-KEGS, Sec.

SPECIFICATION forming part of Letters Patent No. 294,230, dated February '26, 1884.

Application filed FehruaryM, 1883 (No model.)

To all whom it may concern.-

Be it known that we, CHRISTIAN HEINTZ and GEORGE M. HEINTZ, both of Buffalo, in the county of Erie and State of New York, and

ANDREW DorrERWEIcH, of Dunkirk, in the county of Chautauqua and State of New York, have invented a new and Improved Air-Pressure Apparatus for Beer-Kegs, Refrigerators, &c., of which the following is a full, clear, and

exact description.

Reference is to be had to the accompanying drawing, forming part of this specification, in which the figure is a sectioncl frontelevation of our invention.

I 5 A represents a refrigerator, in one compartment of which are placed the beer-kegs B B,

with the ice-boXesO 0 above them.

D is an air-tank arranged, )referably, above the water-tank E, with the short pipe, (1, having the cock a connecting them.

Upon the air-tank D is placed the pressuregage F, and leading from the air-tank to the beer-kegs B B are the pipes G G, which are provided with the cooks b b.

Leading from the water-tank E to the icebox 0 is the pipe H, which is provided with the cock 0, and leading into the water-tank E is the water-pipe J, which is connected with some water-pipe of the building, and this pipe 0 J is provided outside of the water-tank with the cock (I, and inside of the tank with the automatic cut-off cock 0, which is operated by the float f for automatically cutting off the supply of water when it has reached. a suffi- 3 5 cient height in the water'tank.

K is a vent-cock for the water-tank to admit air to the tank while the tank is being emptied of water, and L is the draw-off cock.

In use for supplying a pressure of air to the 40 beer-kegs B B, the air-tank D is first charged with a pressure of air by first closing all of the cocks in the apparatus, except the cock a in the pipe between the water and air tanks, and the cock d, which, being open, will admit a flow 4 5 of water under pressure from the pipe J into the water-tank. As the water-tank fills with water, the air therein will be forced through the pipe a into theair-tank D, creating a pressure of air therein. The water-tank having 0 become full up to the valve, which is auto-.

matically closed by the action of the float j" and the rise of the water in the water in the water-tank E, if the pressure in the air-tank is not sufficient, the cooks a" and (I will be closed, the draw-off and vent cocks K L opened, and the water-tank emptied. These latter cocks will then be closed, and the cocks a (I again opened, and the water-tank again filled with water, forcing its volume of air into the air-tank; and this operation will be repeated until the required pressure in the air-tank is attained, or until the pressure of air therein balances the water-pressure. The cock a is now closed, to prevent the return of the air into the water-tank E, and the cooks b b will then be opened, which will admit the pressure of air to the beer-kegs for forcing out their contents as desired. The cocks 2) b in the pipes G will be turned so as to prevent the'beer entering the pipes when the kegs are firsttapped.

It is designed to place upon the ice in the ice-box a small quantity of ammonia and salt, and to force a current of air into the ice-box, for creating a circulation of air in the refrigerator, causing the ammonia and salt to greatly reduce the temperature in the refrigerator. The supply of water to the water tank E through the pipe J is slightly greater than the discharge of water from the water -t-ank E through the cock L. 8c

In order to force a current of air with our apparatus from the water-tank E into the icebox, it being supposed that there is no water in the watertank E, the cock (I is opened, and also the dischargecock L, to allow the constant 8 5 discharge of water. The supply of water through the supply-pipeJ being slightlygreater than the discharge through the cock L, the water will gradually rise invthe water-tank E and compress the air in its upperend, and by opening the cock 0 the air will be forced into the ice-box. In consequence of the area of the water-supply pipe being slightly greater than the discharge, some time must elapse before the float is carried up by the rising of the water, and in this rising of the water the fioat is raised and the valve 6 partially closed, so that the supply of water will be equal to the discharge, and this may be continued as long as desired. By this construction all the air origi- 10o nally in the water-tank, together with the air brought into it in the supply-pipe, is 'forced into the ice-box.

The Water-tank is so arranged as to be used separate from the air-tankthat is, it may be detached and used for family purposes for cooling refrigerators, &c., without the air-tank D.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The superposed air-chamber D, having a pipe, G, leading to the beer-chamber, and provided with a cock, Z), in combination with the water-chamber E, connected to the chamber D by a pipe, a, having a cook, a", and supplypipe J, having a cock, (Z, and leading to the head of Water, substantially as and for the purpose set forth.

2. The combination, with the ice-box C and pipe H, of the Water-tank E, water-pipe J, 20 having valve 0 and cock (I, and float f, substantially as shown and described. v

3. The combination, ivith the ice-box O and pipe H, having cock 0, of the water-tank E and discharge water-cock I, and the supply- 25 pipe J, having valve 0, cock d, and floatf, the supply-pipe J having a greater area than the dischargecock, and first partially filling the water-tank until the rise of the float causes the supply and discharge pipes to be equal in area, 30 substantially as shown and described.

CHRISTIAN HEINTZ.

GEORGE M. HEINTZ.

ANDR-EXV DOTTERXVEIGH.

\Vi tnesses:

HENRY SMITH, HENRY H. DANIELS. 

